Nsl... Contactor Relays Are Used For Switching Auxiliary Circuits And Control Circuits. - Poles: 8-Pole Contactor Relays - Control Circuit: Dc Operated With Solid Core Magnet Circuit. The Polarity On The Coil Terminals (A1+ And A2-) Must Be Respected - Accessories: A Wide Range Of Accessories Is Available Nsl... Contactors Are Fitted With Low Consumption Dc Coils And Are Suitable For A Direct Control By Plc Outputs.